Patents Assigned to Meijo University
-
Publication number: 20180016565Abstract: A novel mannanase. A polypeptide having a specific amino acid sequence such as the amino acid represented by SEQ ID NO:2 exhibits a mannanase activity. Although this mannanase does not have homology with known mannanase at the amino acid level, the polypeptide has a mannanase activity as well as heat resistance.Type: ApplicationFiled: February 29, 2016Publication date: January 18, 2018Applicant: MEIJO UNIVERSITY EDUCATIONAL FOUNDATIONInventors: Motoyuki SHIMIZU, Masashi KATO
-
Patent number: 9847449Abstract: A nitride semiconductor light-emitting device with periodic gain active layers includes an n-type semiconductor layer, a p-type semiconductor layer and a resonator. The device further includes a plurality of active layers disposed between the n-type and p-type semiconductor layers so as to correspond to a peak intensity position of light existing in the resonator and at least one interlayer disposed between the active layers. The active layer disposed at the p-type semiconductor layer side has a larger light emission intensity than the active layer disposed at the n-type semiconductor layer side.Type: GrantFiled: December 1, 2015Date of Patent: December 19, 2017Assignees: MEIJO UNIVERSITY, STANLEY ELECTRIC CO., LTD.Inventors: Kenjo Matsui, Tetsuya Takeuchi, Motoaki Iwaya, Isamu Akasaki, Takanobu Akagi, Sho Iwayama
-
Patent number: 9777363Abstract: Providing improved wear resistance to a metal material by hardening a surface layer and a surface layer hardening method. A base material is nitrided so that a metal material (40) has a surface layer hardened. The surface layer of the base material is formed with no nitrogen compound layer (40C), and the base material includes a region from a surface thereof to a depth of 78 ?m, the region having a Vickers hardness higher than the base material by not less than 5%.Type: GrantFiled: December 25, 2013Date of Patent: October 3, 2017Assignee: MEIJO UNIVERSITYInventor: Petros Abraha
-
Publication number: 20170248586Abstract: Disclosed herein are a method and a kit using a novel marker associated with depression. The marker for depression includes one or more selected from a noradrenaline transporter and a dopamine transporter. The method for determining depression includes a step of examining an expression level of the marker for depression in a blood sample collected from a subject.Type: ApplicationFiled: April 27, 2017Publication date: August 31, 2017Applicant: MEIJO UNIVERSITYInventors: Toshitaka NABESHIMA, Akihiro Mouri, Yukihiro Noda
-
Publication number: 20170155016Abstract: Fabricating a high-quality nitride semiconductor crystal at a lower temperature. A nitride semiconductor crystal is fabricated by supplying onto a substrate (105) a group III element and/or a compound thereof, a nitrogen element and/or a compound thereof and an Sb element and/or a compound thereof, all of which serve as materials, and thereby vapor-growing at least one layer of nitride semiconductor film (104). A supply ratio of the Sb element to the nitrogen element in a growth process of the at least one layer of the nitride semiconductor film (104) is set to not less than 0.004.Type: ApplicationFiled: March 4, 2014Publication date: June 1, 2017Applicant: MEIJO UNIVERSITYInventors: Tetsuya TAKEUCHI, Tomoyuki SUZUKI, Hiroki SASAJIMA, Motoaki IWAYA, Isamu AKASAKI
-
Patent number: 9666753Abstract: A nitride semiconductor light emitting device includes a substrate as a base and an n-type semiconductor layer grown on a surface side of the substrate. Antimony (Sb) is added to the n-type semiconductor layer so that a molar fraction is not less than 0.1% and is less than 1%. A concentration of an n-type impurity in the n-type semiconductor layer is lower than an electron concentration.Type: GrantFiled: April 8, 2016Date of Patent: May 30, 2017Assignee: MEIJO UNIVERSITYInventors: Tetsuya Takeuchi, Daisuke Komori, Kaku Takarabe, Motoaki Iwaya, Isamu Akasaki
-
Patent number: 9581606Abstract: [Problem] To provide: a method for utilizing a novel marker, including a method for determining depression; and a kit for analyzing an ubiquitinated serotonin transporter. [Solution] A method for determining depression, comprising a step of analyzing the proportion of an ubiquitinated serotonin transporter in a blood sample collected from a subject; and a kit for analyzing an ubiquitinated serotonin transporter in blood, which comprises an ubiquitinated protein collector material and an anti-serotonin transporter antibody and is used for the analysis of the proportion of an ubiquitinated serotonin transporter in a collected blood sample.Type: GrantFiled: January 21, 2016Date of Patent: February 28, 2017Assignee: MEIJO UNIVERSITYInventors: Toshitaka Nabeshima, Akihiro Mouri
-
Publication number: 20170049456Abstract: Providing a stent which can easily be indwelled in a blood vessel in a state such that a catheter can be projected toward an inside of aneurysm. The stent is a stent for use in medical treatment of an aneurysm (1) and includes a cylindrical stent body (10) provided on a peripheral wall and having a plurality of insertion portions (11) through each of which a catheter (7) is insertable and a plurality of valving elements (20) provided in the insertion portions (11) respectively. Each valving element (20) is opened when the catheter (7) is inserted through one of the insertion portions (11). Each valving element (20) is closed when the catheter (7) is pulled out of the insertion portion (11). This suppresses an outflow into a blood vessel of a coil (9) placed in the aneurysm (1).Type: ApplicationFiled: May 13, 2015Publication date: February 23, 2017Applicant: MEIJO UNIVERSITYInventors: Toshio FUKUDA, Akihiko ICHIKAWA, Takahiro ITO
-
Patent number: 9528560Abstract: A recess, which has a bottom, is formed in at least one of a contact surface of a rotor and a contact surface of an armature. A solid material, which is made of thermoset resin that contains powder of metal oxide or metal dispersed in the thermoset resin, is formed in an inside of the recess.Type: GrantFiled: October 20, 2014Date of Patent: December 27, 2016Assignees: DENSO CORPORATION, MEIJO UNIVERSITYInventors: Yousuke Yamagami, Yasuo Tabuchi, Motohiko Ueda, Shouzou Tatematsu, Youichi Murakami, Shigeyoshi Sakuraba, Hatsuhiko Usami
-
Publication number: 20160365479Abstract: This application provides a method of manufacturing an n-p-n nitride-semiconductor light-emitting device which includes a current confinement region(A) using a buried tunnel junction layer and in which a favorable luminous efficacy can be obtained and to provide the n-p-n nitride-semiconductor light-emitting device. The p-type activation of a p-type GaN crystal layer stacked below a tunnel junction layer is performed in an intermediate phase of a manufacturing process in which the p-type GaN crystal layer is exposed to atmosphere gas with the tunnel junction layer partially removed, before the tunnel junction layer is buried in an n-type GaN crystal layer . In the intermediate phase of the manufacturing process in which the p-type GaN crystal layer is exposed, p-type activation is efficiently performed on the p-type GaN crystal layer , and a p-type GaN crystal layer with low electric resistance can be obtained.Type: ApplicationFiled: August 23, 2016Publication date: December 15, 2016Applicant: MEIJO UNIVERSITYInventors: Tetsuya TAKEUCHI, Yuka KUWANO, Motoaki IWAYA, Isamu AKASAKI
-
Publication number: 20160308094Abstract: A nitride semiconductor light emitting device includes a substrate as a base and an n-type semiconductor layer grown on a surface side of the substrate. In the device, antimony (Sb) is added to the n-type semiconductor layer so that a molar fraction is not less than 0.1%. The n-type semiconductor layer has an electron concentration of not less than 1×1018 cm?3.Type: ApplicationFiled: April 8, 2016Publication date: October 20, 2016Applicant: MEIJO UNIVERSITYInventors: Tetsuya TAKEUCHI, Daisuke KOMORI, Kaku TAKARABE, Motoaki IWAYA, Isamu AKASAKI
-
Patent number: 9437775Abstract: An object is to improve a positive hole injection efficiency into an active layer in a nitride semiconductor light-emitting device. The nitride semiconductor light-emitting device is formed by stacking nitride semiconductor crystals each of which contains Al and has a polar or semipolar surface either serving as a growth face. The device includes an active layer (103), and first and second composition-graded layers (102, 104). The active layer (103) is interposed between the first and second composition-graded layers (102, 104). Each one of the first and second composition-graded layers is composition-graded so that an Al composition value is rendered smaller as each one of the first and second composition-graded layers (102, 104) comes close to a side where a sum of spontaneous polarization and piezoelectric polarization is negative.Type: GrantFiled: June 16, 2014Date of Patent: September 6, 2016Assignee: MEIJO UNIVERSITYInventors: Tetsuya Takeuchi, Motoaki Iwaya, Isamu Akasaki
-
Publication number: 20160163919Abstract: A nitride semiconductor light-emitting device with periodic gain active layers includes an n-type semiconductor layer, a p-type semiconductor layer and a resonator. The device further includes a plurality of active layers disposed between the n-type and p-type semiconductor layers so as to correspond to a peak intensity position of light existing in the resonator and at least one interlayer disposed between the active layers. The active layer disposed at the p-type semiconductor layer side has a larger light emission intensity than the active layer disposed at the n-type semiconductor layer side.Type: ApplicationFiled: December 1, 2015Publication date: June 9, 2016Applicants: MEIJO UNIVERSITY, STANLEY ELECTRIC CO., LTD.Inventors: Kenjo MATSUI, Tetsuya TAKEUCHI, Motoaki IWAYA, Isamu AKASAKI, Takanobu AKAGI, Sho IWAYAMA
-
Publication number: 20160154014Abstract: [Problem] To provide: a method for utilizing a novel marker, including a method for determining depression; and a kit for analyzing an ubiquitinated serotonin transporter. [Solution] A method for determining depression, comprising a step of analyzing the proportion of an ubiquitinated serotonin transporter in a blood sample collected from a subject; and a kit for analyzing an ubiquitinated serotonin transporter in blood, which comprises an ubiquitinated protein collector material and an anti-serotonin transporter antibody and is used for the analysis of the proportion of an ubiquitinated serotonin transporter in a collected blood sample.Type: ApplicationFiled: January 21, 2016Publication date: June 2, 2016Applicant: MEIJO UNIVERSITYInventors: Toshitaka NABESHIMA, Akihiro MOURI
-
Publication number: 20160149078Abstract: An object is to improve a positive hole injection efficiency into an active layer in a nitride semiconductor light-emitting device. The nitride semiconductor light-emitting device is formed by stacking nitride semiconductor crystals each of which contains Al and has a polar or semipolar surface either serving as a growth face. The device includes an active layer (103), and first and second composition-graded layers (102, 104). The active layer (103) is interposed between the first and second composition-graded layers (102, 104). Each one of the first and second composition-graded layers is composition-graded so that an Al composition value is rendered smaller as each one of the first and second composition-graded layers (102, 104) comes close to a side where a sum of spontaneous polarization and piezoelectric polarization is negative.Type: ApplicationFiled: June 16, 2014Publication date: May 26, 2016Applicant: MEIJO UNIVERSITYInventors: Tetsuya TAKEUCHI, Motoaki IWAYA, Isamu AKASAKI
-
Patent number: 9299334Abstract: A sound source detecting system that detects a predetermined sound source on the basis of sounds collected by sound collectors includes: a noise extracting unit that extracts a noise from signals of the collected sounds; and a noise suppressing unit that suppresses a signal component of the noise extracted by the noise extracting unit from the signals of the collected sounds. The sound source detecting unit detects a location of the predetermined sound source, such as an approaching vehicle, using information about the sounds having the signals of which the noise is suppressed.Type: GrantFiled: September 19, 2012Date of Patent: March 29, 2016Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, MEIJO UNIVERSITYInventors: Jun Sato, Ryuji Funayama, Tomoya Takatani, Osami Yamamoto, Kensaku Asahi, Hideki Banno, Keiichi Yamada, Akira Ogawa, Yuichi Tanaka, Hiroyuki Hoshino
-
Patent number: 9274127Abstract: [Problem] To provide: a method for utilizing a novel marker, including a method for determining depression; and a kit for analyzing an ubiquitinated serotonin transporter. [Solution] A method for determining depression, comprising a step of analyzing the proportion of an ubiquitinated serotonin transporter in a blood sample collected from a subject; and a kit for analyzing an ubiquitinated serotonin transporter in blood, which comprises an ubiquitinated protein collector material and an anti-serotonin transporter antibody and is used for the analysis of the proportion of an ubiquitinated serotonin transporter in a collected blood sample.Type: GrantFiled: July 19, 2012Date of Patent: March 1, 2016Assignee: MEIJO UNIVERSITYInventors: Toshitaka Nabeshima, Akihiro Mouri
-
Publication number: 20160056333Abstract: Achieving resistance reduction of a nitride semiconductor multilayer film reflector. In the nitride semiconductor multilayer film reflector, a first semiconductor layer (104) has a higher Al composition than a second semiconductor layer (106). A first composition-graded layer (105) is interposed between the first and second semiconductor layers (104, 106) so as to be located at a group III element face side of the first semiconductor layer (104), the first composition-graded layer (105) being adjusted so that its Al composition becomes lower as coming close to the second semiconductor layer (106). A second composition-graded layer (103) is interposed between the first and second semiconductor layers (104, 106) so as to be located at a nitride face side of the first semiconductor layer (104). The second composition-graded layer (103) is adjusted so that its Al composition becomes lower as coming close to the second semiconductor layer (106).Type: ApplicationFiled: March 19, 2014Publication date: February 25, 2016Applicant: MEIJO UNIVERSITYInventors: Tetsuya TAKEUCHI, Motoaki IWAYA, Isamu AKASAKI
-
Patent number: 9254477Abstract: A rectangular substrate 12 composed of c-plane sapphire is prepared. Nickel serving as a catalytic metal is deposited on the entirety of an upper surface of the substrate 12 to form a catalytic metal film 14 (see (a)). The catalytic metal film 14 is patterned by a lithography method into a catalytic metal film 16 having a predetermined shape (see (b)). The temperature of the catalytic metal film 16 is raised to 1000° C. and maintained at 1000° C. for 20 minutes. The temperature of the catalytic metal film 16 is lowered from 1000° C. to 800° C. at a rate of 5° C./min. The temperature of the catalytic metal film 16 is maintained at 800° C. for 15 hours. Thereby, a catalytic metal layer 17 having large grains is provided (see (c)).Type: GrantFiled: August 26, 2014Date of Patent: February 9, 2016Assignee: Meijo UniversityInventors: Shigeya Naritsuka, Takahiro Maruyama
-
Publication number: 20160020359Abstract: Fabricating a high-quality nitride semiconductor crystal at a lower temperature. A nitride semiconductor crystal is fabricated by supplying onto a substrate (105) a group III element and/or a compound thereof, a nitrogen element and/or a compound thereof and an Sb element and/or a compound thereof, all of which serve as materials, and thereby vapor-growing at least one layer of nitride semiconductor film (104). A supply ratio of the Sb element to the nitrogen element in a growth process of the at least one layer of the nitride semiconductor film (104) is set to not less than 0.004.Type: ApplicationFiled: March 4, 2014Publication date: January 21, 2016Applicant: MEIJO UNIVERSITYInventors: Tetsuya TAKEUCHI, Tomoyuki SUZUKI, Hiroki SASAJIMA, Motoaki IWAYA, Isamu AKASAKI